The Department of Defense, specifically the Department of the Navy, is seeking to procure five units of an antenna under a presolicitation notice. The procurement involves a National Stock Number (NSN) 7H-5985-012481159, and the government intends to solicit and negotiate with only one source due to the unavailability of adequate specifications for competitive solicitation. The antennas are critical components for various defense applications, and interested parties are encouraged to express their interest and capability to meet the requirement within 45 days of the notice. For further inquiries, potential vendors can contact Logan Mann at (717) 605-1381 or via email at LOGAN.W.MANN.CIV@US.NAVY.MIL.